Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › 6BTM1 Engine mount help

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  • December 15, 2022 at 9:19 am #139903

    Graham Cole
    Participant
    Vessel Name: none
    Engines: DD 671N
    Location: Vancouver
    Country: Canada

    Hi I have a 1990 Grand Banks 36 with a pair of 210 HP 6BT on straight shafts.  ZF gear.   I am hoping for help in finding the Durometer (stiffness) rating for the engine mounts, which are Metalastik Cushyfloat 17-1609.  The Stiffness is -45 through -75.  Can anyone advice?  Thanks so much!

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  • December 18, 2022 at 3:54 pm #140002

    chris frosina
    Participant
    Vessel Name: monte cristo
    Engines: 3208 caterpillar
    Location: long island
    Country: usa

    Graham Go to mission supply . Com. These guys are very good l just bought 8 new mounts for a pair of 3208s. Durometer #is on the flat part of the mount a little hard to find sometimes but some sanding will help. 

    December 18, 2022 at 9:56 am #139999

    Graham Cole
    Participant
    Vessel Name: none
    Engines: DD 671N
    Location: Vancouver
    Country: Canada

    thanks All I saw embossed on the rubber under the steel cap was the generic part number without  any durometer suffix.  Ill go look again.

    December 16, 2022 at 5:45 pm #139973

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    Metalastik mounts

    If you are trying to just replace what you have now, then you need to pull one and look really close under the  steel cap on the side of the rubber– everyone I have seen has a number cast into the rubber.  Getting that info from Cummins ?? Don’t plan on that.

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